Pickleball is a social game - you generally don't see a whole lot of anger on the court, mainly because everyone is looking to have some fun and not worry about the number of wins (everyone keeps score, so there are winners and losers, but I have yet to see anyone get upset).
Now there's an odd rule that says (or rather doesn't say) where the server's partner must stand. In the below video, you'll see what is known as
side stacking. "When
stacking, often you will see both players on the same side of the court during their serve, after which the server will move over to the other court. Used in receiving you’ll sometimes see the proper receiver return the ball and make a run, diagonally, towards the opposite kitchen line."
Typically stacking is used when one player is a lefty. If you don't side stack, the middle is open to two backhands; stacking allows players to get in position for two forehands down the middle line. It's also used when one player has a particular good (or great) forehand.
The video below has both side stacking, in addition to, well, an anti-social game. They seem pretty angry; however, keep in mind, this is a tournament game and not a Saturday morning "who's up?" game.
The video also has some
poaching - aggressively going after the ball. The guy in the white shirt may be referred to as a poacher (even in the comments, someone refers to him as a 'court hog').
Now the video is nearly an hour (you don't need to watch that much to get the gist), but when the guy in the white shirt and the lady in the yellow shorts switch sides, you will see a better example of stacking. Both sides stack, but the aforementioned duo seem to do it more often - go 25 minutes for the side change.
